Table 5.
ABO blood types and susceptibility to H pylori infection (n = 230)
| Blood types | A (n = 44) | B (n = 54) | O (n = 122) | AB (n = 10) | P |
| H pylori status | 0.255 | ||||
| Positive | 34 | 49 | 106 | 8 | |
| Negative | 10 | 5 | 16 | 2 | |
| Prevalence % | 77.2 | 90.7 | 86.8 | 80 |
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